package com.imooc.town.controller;

import com.imooc.town.config.ProjectUrlConfig;
import com.imooc.town.config.WechatMpConfig;
import com.imooc.town.enums.ResultEnum;
import com.imooc.town.exception.SellException;
import jdk.internal.org.objectweb.asm.tree.TryCatchBlockNode;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.print.DocFlavor;
import java.net.URLEncoder;

/**
 * create by song on 2018/3/23
 * To change this template use File | Settings | File Templates.
 */

@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {

    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private WxMpService wxOpenService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @GetMapping("/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl){
//        1、配置
//        2、调用方法

        String url = "";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl ( url, WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl) );
        return "redirect"+redirectUrl;
    }

    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code") String code ,@RequestParam("state") String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken ();
        try {
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken ( code );
        }catch (WxErrorException e){
            log.error ( "【微信网页授权】,{}",e );
            throw new SellException( ResultEnum.WECHAT_MP_ERROR.getCode (),e.getError ().getErrorMsg ());
        }
        String openId = wxMpOAuth2AccessToken.getOpenId ();
        return  "redirect:"+returnUrl+"?openid="+openId;
    }


    @GetMapping("/qrAuthorize")
    public String qrAuthorize(@RequestParam String returnUrl){
        String url = projectUrlConfig.getWechatOpenAuthorize ()+"/sell/weChat/qrUserInfo";
        String redirectUrl = wxOpenService.buildQrConnectUrl ( url,WxConsts.QRCONNECT_SCOPE_SNSAPI_LOGIN,URLEncoder.encode ( returnUrl ) );
        return "redirect:"+redirectUrl;
    }


    @GetMapping("/qrUserInfo")
    public String qrUserInfo(@RequestParam("code") String code ,@RequestParam("returnUrl") String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken ();

        try {
            wxMpOAuth2AccessToken = wxOpenService.oauth2getAccessToken ( code );
        }catch (WxErrorException e){
            log.error("【微信网页授权】{}", e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }

        log.info("wxMpOAuth2AccessToken={}", wxMpOAuth2AccessToken);
        String openId = wxMpOAuth2AccessToken.getOpenId();

        return "redirect:" + returnUrl + "?openid=" + openId;
    }
}
